Richard b



(No Model.)

R. B. SHELDON.

GRAIN DRILL.

Patented Nov. 13, 1888;

p or draft frame, as usual.

NITED STATES 'rnivr rric.

- RICHARD B. SHELDON, OF SHORTSVILLE, NEYV YORK, ASSIGNOR TO THE EMPIRE DRILL COMPANY, OF NEV YORK.

GRAIN-DRILL.

SPECIFICATION forming part of Letters Patent No. 392,694, dated November 13, 1888.

Application filed May 1l, 18$8. Serial No. 273,557. (No model.)

To all whom, it may concern.-

Be it known that l, RICHARD l3. SHELDON, of Shortsville, in the county of Ontario and State of New York, have invented certain I111- provements in Grain-Drills, of which the following is a specification.

This invention has reference to that class of grain-drills, seeders, and kindred machines in which a series of beams or drag-bars carrying drill teeth or shovels at their rear ends are jointed at their forward ends to the draft frame' in such a manner that their rear ends may swing vertically.

The aim of the invention is to provide connections between the frame and drag-bars which will admit of the latter being adjusted laterally to change the distance between them, as occasion may require; and to this end it consists in a peculiar sliding connection, hereinafter de scribed in detail.

In the accompanying drawings, Figure 1 is a perspective view, looking against the under side, of a portion of the main frame with my improvement applied thereto. Fig. 2 is a vertical section through the center of the same from front to rear on the line 1 1. Fig. 3 is a perspective view of the sliding block.

In the drawings 1 have deemed it sufficient to show the overhanging end of a single dragbar and its connection to the main frame, and this for the reason that the other connections will be duplicates thereof.

Referring to the drawings, A represents the beam or cross-bar forming a portion of the main This bar is rabbeted along its lower corners in such manner as to form a downwardly-extending rib, a. To the under side of this rib is secured lengthwise of the bar, by vertical bolts b,a metal bar or plate, B, of such width that its edges project in the front and rear beyond the rib a.

0 represents a block cast complete in one piece, of suitable form to fit against the under face of the bar B, and with four ears, 0, adapted to clasp upward around the edges of the bar, as shown.

In its under side the plate 0 is formed with two depending ears, 0', or otherwise suitably formed to receive horizontal pivots e, by which the forward ends of the drag-bars D are connected thereto. The block 0 is provided with a transverse opening, 0, terminating at the rear end in the form of an open slot and at the front end in the form of a hole through the upturned flange of the block. Abol t, E, is passed through this opening from the rear beneath the bar B, the head on its rear end bearing against the edge of said bar, while its forward end carries a nut, 6, bearing against the front face of the block 0. hen the bolt is loosened, the block 0 is free to slide on the bar B transversely of the machine, so as to move the drag-bar and its tooth laterally. When, however, the bolt E is tightened by means of its nut e, the head of the bolt and thefront edge of the block are caused to bear tightly against the bar B, so as to prevent lateral motion of the latter.

It will be observed that the entire strain ex ertcd through the drag-bar upon the block 0 is received by the lugs c and bar B. The bar B is continued to each side of the machine, so that the block 0 may he slipped therefrom in the event of its being desired to remove the drag-bars, or either of them, from the machine.

In order to avoid the necessity of countersinking or unduly weakeningthe bar B, I may recess the upper face of the block 0 longitudinally in order to admit of its passing freely over the heads of the fasteningbolts b, although the latter may project somewhat below the face of the bar B.

While it is preferred to use the beam A of a width greater than the bar B, in order to give the necessary rigidity to the structure, it is to be understood that the bar B may be widened or the beam. A reduced in width, so as to secure the necessary projection of the edges of the plate B without the necessity of rabbeting the beam A.

I am aware that drag-bars have been variously attached to wheeled frames to admit of their being adjusted laterally, and my invention is limited to the details of construction substantially such as herein shown. It will be perceived that my adjustable plate is so con structed that it may be cast complete in one piece without the use of cores in the mold, and that it requires no machining or fitting what ever, except the drilling of the holes through the ears 0, to adapt it for use. It is also to be noted that by the employment of a single bolt,

located midway, or thereabout, of the length of the plate, the one bolt is adapted to draw the plate tightly against its supporting-bar at both ends, so that it is prevented from slipping out of position or from rattling when in action. It will also be observed that the horizontal bolt is exposed at its forward end in a position in which it is at all times accessible, so that it may be readily tightened and loosened.

Having thus described my invention,what I claim is 1. In combination with the frame-bar A, the metal bar B, secured lengthwise thereof, the drag-bars and the drag-bar-supporting blocks 0, each having dependingears to receive the drag-bar and upright lips embracing the edges of the bar B, and a horizontal bolt, E, seated in thesliding plate and acting at one end against the edge of the bar B, as shown, whereby the single bolt is enabled to look the plate firmly against the bar at both ends.

2. The rabbeted frame bar or beam A and the metal bar B, bolted to its under face, in combination with an underlying block, C, having the flanges or lips 0, adapted to clasp'the 25 edges of the bar B, the bolt E, seated in a transverse groove in the block beneath the bar B and acting at one end against the latter, and the drag-bar pivoted to the block.

3. The slide or block 0, for attaching a drag- 30 bar adjustably to a grain-drill, consisting of the body portion having the uprising lips c, the depending ears 0, and an open transverse slot, 0 in its upper surface.

In testimony whereof Ihereunto set myhand, 5 this 17th day of February, 1888, in the pres ence of two attesting witnesses.

RICHARD B. SHELDON.

Witnesses:

HENRY O. KLINoK, M. I. TERWILLIGER. 

